Ruling · Karaka Caturthī (Karwa Chauth) · 2040

Tuesday 23 October

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 424 minutes.

Decide it for

38°52′ N 115°28′ E · Asia/Shanghai · GeoNames 1816971

The two moonrises

One ghaṭī is 24 minutes. The moonrise is read as disc centre, 31′.

Moonrise of Tuesday 23 October

Taken. The only moonrise Caturthī holds at.

19:23 moonrise
18:1118:3518:5919:2319:4720:1120:35

Holds at moonrise

Moonrise of Wednesday 24 October

Caturthī does not hold at moonrise. Not taken.

20:04 moonrise
18:5219:1619:4020:0420:2820:5221:16

Absent at moonrise

Caturthī presentMoonrise, the instant the rule readsThe instant the tithi begins or ends

How it was decided

  1. 01

    Aṅga

    Caturthī runs from 11:59 on Tue 23 Oct to 13:00 on Wed 24 Oct.

    2040-10-23T03:58:42Z → 2040-10-24T05:00:29Z

  2. 02

    Kāla

    Moonrise is at 19:23 on the 23rd and 20:04 on the 24th.

    moonrise: disc centre, 31′

  3. 03

    Rule

    Caturthī must be current at moonrise. It is on the 23rd and is not on the 24th.

    Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104

  4. 04

    Tie-break

    Only one moonrise qualifies. No tie-break is needed.

    priority: purvaviddha → only-day · margin 25422 s

  5. 05

    Ruling

    Karaka Caturthī, Baoding, 2040: Tuesday 23 October.

    confidence: determinate

Say it like this

In Baoding, Karaka Caturthī (Karwa Chauth) 2040 falls on Tuesday 23 October. Caturthī runs from 11:59 on Tue 23 Oct to 13:00 on Wed 24 Oct and is current at moonrise that day.

ahargana.org/baoding/festivals/2040/karaka-chaturthi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingTue 23 Oct
Ahargaṇa, classicalDisc centre, no refractionTue 23 Oct
compat-drikpanchangComparison profileTue 23 Oct
No institution has a recorded ruling for Baoding.

Institutional rulings are recorded with a source address, and are never edited to agree.

The rule, as data

/rules/karaka-chaturthi · ruleset 2026.3-draft

Month
Āśvina, amānta
Pakṣa · aṅga
Kṛṣṇa · Caturthī
Kāla
Moonrise
Priority
Pūrvaviddhā
Tie-break
First day
Reference
CRC 1955, p. 104

“K 4 Karaka caturthi (current at moon-rise, if occurs on two successive days, it is to be observed on the first day)” Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104.

The same rule, elsewhere

Twelve places, west to east. Local clock times.

PlaceCaturthīMoonrise 23rdCoveredMoonrise 24thCoveredRuled
Los Angeles20:59 → 22:0020:39holds21:26no23 Oct
Chicago22:59 → 00:0020:07holds20:51no23 Oct
Jersey City23:59 → 01:0020:16holds21:00no23 Oct
Port of Spain23:59 → 01:0020:39holds21:30no23 Oct
London04:59 → 06:0019:25holds20:01no23 Oct
Durban05:59 → 07:0021:39holds22:37no23 Oct
Dubai07:59 → 09:0020:06holds20:53no23 Oct
Delhi09:29 → 10:3019:58holds20:43no23 Oct
Kolkata09:29 → 10:3019:25holds20:12no23 Oct
Singapore11:59 → 13:0021:32holds22:24no23 Oct
Sydney14:59 → 16:0022:29holds23:29no23 Oct
Suva15:59 → 17:0020:59holds21:55no23 Oct
Profile · tradition
pac-rp@2026.1 · smarta
Rule
karaka-chaturthi@2026.3-draft
Engine · kernel
0.1.0 · de440 7eef…ea74
Boundary margin
300 s

About Ahargaṇa